Home / 17,720.37-26,589.87-7,866.72

Finding the Fourth Proportional to 17,720.37, 26,589.87 and 7,866.72

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Solution

The fourth proportional to 17,720.37, 26,589.87 and 7,866.72 is: 11,804.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,720.37 : 26,589.87 = 7,866.72 : x
  2. Step 2: Convert to fraction form
    17,720.37/26,589.87 = 7,866.72/x
  3. Step 3: Cross multiply
    17,720.37x = 26,589.87 × 7,866.72
  4. Step 4: Simplify right side
    17,720.37x = 209,175,062.13
  5. Step 5: Solve for x
    x = 209,175,062.13/17,720.37
  6. Step 6: Final answer
    x = 11,804.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.